ddownload vs SEO Score
Same instrument, two spec sheets — measured, not claimed.
ddownload vs SEO Score: common questions
Which is more reliable, ddownload or SEO Score?
Both are neck-and-neck — ddownload and SEO Score each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, ddownload or SEO Score?
ddownload has the lower median latency in our checks — ddownload responds in 365 ms versus SEO Score at 634 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do ddownload and SEO Score need an API key?
Both ask you to authenticate — ddownload uses an API key and SEO Score uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call ddownload and SEO Score from the browser?
Neither sends browser-friendly CORS headers reliably, so call ddownload and SEO Score from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are ddownload and SEO Score free for commercial use?
ddownload has unclear commercial terms, and SEO Score has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.